iodev/biosdev.h

   1 ////////////////////////////////////////////////////////////////////////
   2 // $Id: biosdev.h,v 1.8 2006/09/10 17:18:44 vruppert Exp $
   3 /////////////////////////////////////////////////////////////////////////
   4 //
   5 //  Copyright (C) 2002  MandrakeSoft S.A.
   6 //
   7 //    MandrakeSoft S.A.
   8 //    43, rue d'Aboukir
   9 //    75002 Paris - France
  10 //    http://www.linux-mandrake.com/
  11 //    http://www.mandrakesoft.com/
  12 //
  13 //  This library is free software; you can redistribute it and/or
  14 //  modify it under the terms of the GNU Lesser General Public
  15 //  License as published by the Free Software Foundation; either
  16 //  version 2 of the License, or (at your option) any later version.
  17 //
  18 //  This library is distributed in the hope that it will be useful,
  19 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 //  Lesser General Public License for more details.
  22 //
  23 //  You should have received a copy of the GNU Lesser General Public
  24 //  License along with this library; if not, write to the Free Software
  25 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26
  27
  28 #ifndef BX_IODEV_BIOSDEV_H
  29 #define BX_IODEV_BIOSDEV_H
  30
  31 #define BX_BIOS_MESSAGE_SIZE 80
  32
  33 #if BX_USE_BIOS_SMF
  34 #  define BX_BIOS_SMF  static
  35 #  define BX_BIOS_THIS theBiosDevice->
  36 #else
  37 #  define BX_BIOS_SMF
  38 #  define BX_BIOS_THIS this->
  39 #endif
  40
  41 class bx_biosdev_c : public bx_devmodel_c {
  42 public:
  43   bx_biosdev_c();
  44   virtual ~bx_biosdev_c();
  45
  46   virtual void init(void);
  47   virtual void reset(unsigned type) {}
  48
  49 private:
  50
  51   static void   write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
  52 #if !BX_USE_BIOS_SMF
  53   void   write(Bit32u address, Bit32u value, unsigned io_len);
  54 #endif
  55
  56   struct {
  57     Bit8u bios_message[BX_BIOS_MESSAGE_SIZE];
  58     unsigned int bios_message_i;
  59     bx_bool bios_panic_flag;
  60
  61     Bit8u vgabios_message[BX_BIOS_MESSAGE_SIZE];
  62     unsigned int vgabios_message_i;
  63     bx_bool vgabios_panic_flag;
  64   } s;  // state information
  65 };
  66
  67 #endif